Where do you work best?

I want to make up a list for my OOAK business site on different places to set up a office for working with OOAK projects to sell. Any ideas on good workspaces? How do you keep kids out of your work area if you work with clays or beads? Or do the kids help? Maybe you use the kids' stuff?

I'm most interested in just the variety of places where people work and what medium they work in in that area. For example, my quilting is done in the basement because I can leave things spread out down there.